Osg 215-2420 Screw Machine Drill Bit 0.242in Carbide

Product Description

The OSG 215-2420 is a screw machine length drill bit engineered for demanding hole-making applications in hard and abrasive materials. Built from solid carbide, it delivers superior rigidity and wear resistance compared to high-speed steel alternatives. The 135-degree split point reduces walking and decreases thrust force, making it suitable for hand-held or CNC-driven operations. At 0.242 inches (Letter C) in diameter with an overall length of 2.5 inches and a flute length of 1.375 inches, the compact screw machine geometry provides added stability in short, stiff setups. A bright, uncoated finish makes re-sharpening straightforward.

The 215-2420 is suited for production and maintenance drilling in materials including steel, alloy steel, stainless steel, cast iron, aluminum silicate, nickel alloy, titanium, and titanium alloy. Its 5xD flute-to-diameter ratio and slow spiral flute design support chip evacuation in these demanding materials. Typical install scenarios include CNC machining centers, manual drill presses, and turret lathes where stub-length rigidity is preferred over jobber-length flexibility.

Key Features

• Solid carbide construction for extended tool life in hard and abrasive workpiece materials
• 135-degree standard split point reduces thrust and minimizes drill walk on entry
• Slow spiral, 2-flute design promotes controlled chip flow in difficult-to-machine alloys
• Web-thinned, tapered web configuration lowers cutting resistance
• Bright uncoated finish allows easy inspection and supports re-sharpening
• Straight-cylindrical shank fits standard drill chucks and collet holders without modification

Compatibility

Designed as a general-purpose screw machine length drill bit in OSG Series 215, suitable for use in CNC machining centers, drill presses, and lathes accepting a straight-cylindrical shank in the 0.200 to 0.250 inch diameter range.

Installation Notes

Installation should be performed by a qualified machinist or tooling technician. Secure the shank fully in a properly sized collet or drill chuck before operation, and verify runout before drilling into workpiece material. Always power down and lock out the machine spindle before changing tooling. Follow applicable shop safety standards and machine-tool manufacturer guidelines for solid carbide tooling, as carbide is brittle and can fracture under side-load or impact.